<template>
    <div class="login_container">
      <div class="login_box">
<!--        头像区域-->
        <div class="avatar_box">
          <img src="../assets/logo.png" alt="">
        </div>
<!--        登录表单区域-->
        <el-form
          status-icon
          class="login-form"
          :rules="loginFormRules"
          ref="loginForRef"
          :model="loginForm">
<!--          用户名-->
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
          </el-form-item>
<!--          密码-->
          <el-form-item prop="password">
            <el-input type="password" v-model="loginForm.password" prefix-icon="iconfont icon-3702mima"></el-input>
          </el-form-item>
<!--          按钮区域-->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
</template>

<script>
export default {
  name: 'Login',
  data () {
    return {
      // 登录表单数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 表单验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 重置表单
    resetLoginForm () {
      console.log(this.$refs)
      this.$refs.loginForRef.resetFields()
    },
    // 登录
    login () {
      this.$refs.loginForRef.validate(async valid => {
        console.log(valid)
        if (!valid) return false
        // const result = await this.$http.post('login', this.loginForm)
        // console.log(result.data)
        const { data: res } = await this.$http.post('login', this.loginForm)
        console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('登录失败')
        }
        this.$message.success('登录成功')
        // 记录服务器返回的token保存到session中
        window.sessionStorage.setItem('token', res.data.token)
        // 编程式导航跳转到后台首页
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style scoped lang="less">
.login_container{
  background-color: #2b4b6b;
  height: 100%;
}
.login_box{
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  .avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    img{
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.btns{
  display: flex;
  justify-content: flex-end;
}
.login-form{
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>
